The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 2026

Lycoming IO-540 series

4,218 aircraft on the U.S. register carry a Lycoming IO-540 series engine, rated at about 300 horsepower. The Piper PA-32 Cherokee Six, Lance and Saratoga is the model most often fitted with it (1,059 aircraft). The aircraft carrying it were built between 1965 and 2026.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Lycoming IO-540 series (2 codes). FAA spellings: IO-540 SER · IO 540 SER.

When the aircraft were built by decade

By decade built, as a table
aircraft
19402
195013
196096
1970797
1980579
1990748
20001,339
201078
202056

What the FAA has certified, ordered and been told about the Lycoming IO-540 series the component layer

The design is held under 1 type certificate (1E4, held by Lycoming Engines). The FAA has issued 49 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 316 failure reports with the FAA since 1995, 17 of them in the last ten years.

FAA orders 49 airworthiness directives · newest first

2026-09-142026-17-10 · Reciprocating Engine Cylinder Section · engine
2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2017-08-152017-16-11 · Reciprocating Engine Power Section · engine
2015-11-032015-19-07 · Fuel injector fuel lines · engine

All orders naming the Lycoming IO-540 series

Failure reports 316 since · what operators and shops told the FAA

012253850950005101523226
Failure reports by year, as a table
reports
953
963
973
984
994
0011
0137
0215
0337
0434
0550
0630
0719
0812
093
1012
112
127
135
146
152
171
194
202
222
231
245
262

Parts most often reported as the reports name them

Magneto19Cylinder10Bearing8Gasket8Bolt7Boot7Actuator6Line6Pump6Baffle5
Parts most reported, as a table
reports
Magneto19
Cylinder10
Bearing8
Gasket8
Bolt7
Boot7
Actuator6
Line6
Pump6
Baffle5

Latest reports

2026-05-09Thrust Button: faulted
2026-01-29Magneto: failed
2024-08-07Magneto: failed
2024-08-06Magneto: failed
2024-03-14Magneto: failed

Certificates and bulletins

1E4Type certificate held by Lycoming Engines · 81 models listed · revised February 28, 2018

Safety bulletins 14 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2016-05-13NE-08-32R1 · Propeller Governor Idler Gear Shaft Set Screw
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2012-11-21NE-13-06 · Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320,...
2011-03-31NE-08-26R3 · Magneto/Distributor

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Biggest operators
Airworthiness

The whole map of how records connect · these connections as data: /graph/engine/lycoming-io-540-series.json.

Aircraft newest certificates first · 4,218

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N1909S Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Illinois
Standard 2016-10-25 ValidFAA registration status code V: Valid registration. All codes
N584JH Hodge
ROCKET II
Fixed-wing, single engine Soaring Eagle Aviation LLC
Missoula, Montana
Experimental 2016-10-25 ValidFAA registration status code V: Valid registration. All codes
N206JA Cessna
206H
Fixed-wing, single engine Individual owner
Missouri
Standard 2016-10-24 ValidFAA registration status code V: Valid registration. All codes
N7270Y Cessna
182S
Fixed-wing, single engine Co-owned owner
New York
Standard 2016-10-24 ValidFAA registration status code V: Valid registration. All codes
N246SR Rice Air Llc
SUPER REBEL
Fixed-wing, single engine Friendship Church
Frisco, Texas
Experimental 2016-10-21 ValidFAA registration status code V: Valid registration. All codes
N8127K Piper
PA-32-300
Fixed-wing, single engine Antler Aviation and Wildlife Service LLC
Wasilla, Alaska
Standard 2016-10-20 ValidFAA registration status code V: Valid registration. All codes
N2468F Cessna
182S
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2016-10-19 ValidFAA registration status code V: Valid registration. All codes
N3543H Cessna
182T
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2016-10-17 ValidFAA registration status code V: Valid registration. All codes
N747FA Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2016-10-17 ValidFAA registration status code V: Valid registration. All codes
N6900T Piper
PA-60-602P
Fixed-wing, multi-engine Aircraft Guaranty CORP Trustee
Oklahoma City, Oklahoma
Standard 2016-10-13 ValidFAA registration status code V: Valid registration. All codes
N7268F Cessna
182S
Fixed-wing, single engine Individual owner
New Mexico
Standard 2016-10-13 ValidFAA registration status code V: Valid registration. All codes
N672M Maule
M-6-235
Fixed-wing, single engine Individual owner
Georgia
Standard 2016-10-06 ValidFAA registration status code V: Valid registration. All codes
N2122D S/S Systems Llc
RV-10
Fixed-wing, single engine S/S Systems LLC
Roca, Nebraska
Experimental 2016-09-27 ValidFAA registration status code V: Valid registration. All codes
N281AW Webb Alan
HARMON ROCKET II
Fixed-wing, single engine Individual owner
Oregon
Experimental 2016-09-27 ValidFAA registration status code V: Valid registration. All codes
N221AH Piper
PA-32R-301
Fixed-wing, single engine Bahama Services INC
Royal Palm Beach, Florida
Standard 2016-09-26 ValidFAA registration status code V: Valid registration. All codes
N4307Y Piper
PA-32R-301
Fixed-wing, single engine Shoulder Solutions LLC
Spotsylvania, Virginia
Standard 2016-09-26 ValidFAA registration status code V: Valid registration. All codes
N2352B Cessna
182S
Fixed-wing, single engine Gwyn Farms INC
Moses Lake, Washington
Standard 2016-09-23 ValidFAA registration status code V: Valid registration. All codes
N53JL Piper
PA-32R-300
Fixed-wing, single engine Withheld at owner's request
Standard 2016-09-21 ValidFAA registration status code V: Valid registration. All codes
N542EC Cessna
182T
Fixed-wing, single engine Co-owned owner
West Virginia
Standard 2016-09-20 ValidFAA registration status code V: Valid registration. All codes
N3114X New Piper Aircraft Inc
PA32-301FT
Fixed-wing, single engine Northgate Aviation INC
Chico, California
Standard 2016-09-19 ValidFAA registration status code V: Valid registration. All codes
N5877N Rockwell International
114
Fixed-wing, single engine Individual owner
Virginia
Standard 2016-09-19 ValidFAA registration status code V: Valid registration. All codes
N65279 Cessna
182T
Fixed-wing, single engine Co-owned owner
Florida
Standard 2016-09-19 ValidFAA registration status code V: Valid registration. All codes
N72MC Cessna
182T
Fixed-wing, single engine Aa-Aero INC
Fairfield, New Jersey
Standard 2016-09-15 ValidFAA registration status code V: Valid registration. All codes
N357AS Robinson Helicopter
R44 II
Helicopter Aero Leasing INC
Medford, Oregon
Standard 2016-09-07 ValidFAA registration status code V: Valid registration. All codes
N322TB Black Nelson Taylor
F-1B ROCKET
Fixed-wing, single engine Individual owner
Texas
Experimental 2016-09-06 ValidFAA registration status code V: Valid registration. All codes
N4197Q Cessna
182S
Fixed-wing, single engine Sumner Properties LLC
Somersworth, New Hampshire
Standard 2016-09-01 ValidFAA registration status code V: Valid registration. All codes
N730WM Cessna
182S
Fixed-wing, single engine Individual owner
Ohio
Standard 2016-08-31 ValidFAA registration status code V: Valid registration. All codes
N242CC Piper
PA-32R-301
Fixed-wing, single engine Recreational Management INC
Mount Ida, Arkansas
Standard 2016-08-25 ValidFAA registration status code V: Valid registration. All codes
N2183Z Piper
PA-32-300
Fixed-wing, single engine Condor Enterprises INC
Elkins Park, Pennsylvania
Standard 2016-08-23 ValidFAA registration status code V: Valid registration. All codes
N2299B Rockwell International
114
Fixed-wing, single engine Eximious Flying Club INC
Ferndale, Michigan
Standard 2016-08-17 ValidFAA registration status code V: Valid registration. All codes
N369KG Maule
M-7-235B
Fixed-wing, single engine Withheld at owner's request
Multiple 2016-08-03 ValidFAA registration status code V: Valid registration. All codes
N9475P Piper
PA-24-260
Fixed-wing, single engine Individual owner
New Jersey
Standard 2016-08-01 ValidFAA registration status code V: Valid registration. All codes
N9504L Cessna
182S
Fixed-wing, single engine Individual owner
New Hampshire
Standard 2016-08-01 ValidFAA registration status code V: Valid registration. All codes
N114B Commander Aircraft Co
114-B
Fixed-wing, single engine Individual owner
Virginia
Standard 2016-07-26 ValidFAA registration status code V: Valid registration. All codes
N276ME Cessna
206H
Fixed-wing, single engine Boersma Rances LLC
Warden, Washington
Standard 2016-07-25 ValidFAA registration status code V: Valid registration. All codes
N244VB Robinson Helicopter
R44 II
Helicopter Individual owner
Virginia
Standard 2016-07-19 ValidFAA registration status code V: Valid registration. All codes
N4327M Piper
PA-32R-301
Fixed-wing, single engine Destiny: Success LLC
San Luis Obispo, California
Standard 2016-07-18 ValidFAA registration status code V: Valid registration. All codes
N313EJ Steers Rt/Clark Jt/Gustafson G
RV10
Fixed-wing, single engine Individual owner
California
Experimental 2016-07-15 ValidFAA registration status code V: Valid registration. All codes
N600VF Piper
AEROSTAR 600
Fixed-wing, multi-engine Bravo Gulf LLC
Cleveland, Ohio
Standard 2016-07-11 ValidFAA registration status code V: Valid registration. All codes
N220SG Robinson Helicopter
R44 II
Helicopter Executive Helicopters INC
Myrtle Beach, South Carolina
Standard 2016-07-06 ValidFAA registration status code V: Valid registration. All codes
N123AJ Lavelle Jeff
GLASAIR III
Fixed-wing, single engine Race 39 LLC
Kenmore, Washington
Experimental 2016-07-05 ValidFAA registration status code V: Valid registration. All codes
N182VM Cessna
182T
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2016-06-29 ValidFAA registration status code V: Valid registration. All codes
N610RV Debauw Randel J
RV 10A
Fixed-wing, single engine Individual owner
Texas
Experimental 2016-06-29 ValidFAA registration status code V: Valid registration. All codes
N1403P Aerofab Inc
LAKE LA-250
Fixed-wing, single engine Presby Aire LLC
Berlin, New Hampshire
Standard 2016-06-23 ValidFAA registration status code V: Valid registration. All codes
N667SA Robinson Helicopter
R44
Helicopter Helicopter N667Sa LLC
Lisbon, North Dakota
Standard 2016-06-23 ValidFAA registration status code V: Valid registration. All codes
N811TW Cessna
182T
Fixed-wing, single engine Nova Aircraft Holdings INC
San Diego, California
Standard 2016-06-23 ValidFAA registration status code V: Valid registration. All codes
N17JF Rockwell International
114A
Fixed-wing, single engine Worley William N IV
Ormond Beach, Florida
Standard 2016-06-21 ValidFAA registration status code V: Valid registration. All codes
N10DE Bellanca
17-31A
Fixed-wing, single engine Individual owner
North Carolina
Standard 2016-06-13 ValidFAA registration status code V: Valid registration. All codes
N2125A Cessna
182T
Fixed-wing, single engine Individual owner
Michigan
Standard 2016-06-09 ValidFAA registration status code V: Valid registration. All codes
N969EZ Maule
M-7-235C
Fixed-wing, single engine Command Air LLC
White Salmon, Washington
Standard 2016-06-09 ValidFAA registration status code V: Valid registration. All codes
N65472 Cessna
182T
Fixed-wing, single engine
Standard 2016-06-08 ValidFAA registration status code V: Valid registration. All codes
N555PX Piper
PA-60-602P
Fixed-wing, multi-engine Windsock Holdings LLC
Amarillo, Texas
Standard 2016-06-03 ValidFAA registration status code V: Valid registration. All codes
N5650R Maule
M-5-235C
Fixed-wing, single engine Waco Air LLC
Wolfeboro, New Hampshire
Standard 2016-06-03 ValidFAA registration status code V: Valid registration. All codes
N23816 Cessna
182S
Fixed-wing, single engine Individual owner
Nevada
Standard 2016-06-01 ValidFAA registration status code V: Valid registration. All codes
N141AN Piper
PA-32-300
Fixed-wing, single engine Individual owner
Nebraska
Standard 2016-05-27 ValidFAA registration status code V: Valid registration. All codes
N2440Q Cessna
182S
Fixed-wing, single engine Teanaway Ventures Consulting LLC
Cle Elum, Washington
Standard 2016-05-26 ValidFAA registration status code V: Valid registration. All codes
N324G Piper
PA-32R-301
Fixed-wing, single engine Isle Air LLC
Danbury, Connecticut
Standard 2016-05-25 ValidFAA registration status code V: Valid registration. All codes
N722SB Maule
M-6-235
Fixed-wing, single engine Individual owner
Idaho
Standard 2016-05-17 ValidFAA registration status code V: Valid registration. All codes
N507JP Rockwell International
500-S
Fixed-wing, multi-engine Shrike Comm LLC
Matthews, North Carolina
Standard 2016-05-12 ValidFAA registration status code V: Valid registration. All codes
N470P Cessna
182T
Fixed-wing, single engine Greentree Aviation LLC
Sewell, New Jersey
Standard 2016-05-06 ValidFAA registration status code V: Valid registration. All codes
N74353 Robinson Helicopter
R44 II
Helicopter Individual owner
South Dakota
Standard 2016-05-05 ValidFAA registration status code V: Valid registration. All codes
N8248D Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2016-04-29 ValidFAA registration status code V: Valid registration. All codes
N254MA Piper
PA32-301FT
Fixed-wing, single engine Individual owner
New Hampshire
Standard 2016-04-27 ValidFAA registration status code V: Valid registration. All codes
N540KM Cessna
206H
Fixed-wing, single engine Kreuter Engineering
New Paris, Indiana
Standard 2016-04-26 ValidFAA registration status code V: Valid registration. All codes
N747XX Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
Oklahoma
Standard 2016-04-26 ValidFAA registration status code V: Valid registration. All codes
N6191H Breier Stephen
RV-10
Fixed-wing, single engine Flying Inn Dfw LLC
Ft Worth, Texas
Experimental 2016-04-22 ValidFAA registration status code V: Valid registration. All codes
N321SR Crevoisier Ralph
GLASAIR III
Fixed-wing, single engine Individual owner
Texas
Experimental 2016-04-18 ValidFAA registration status code V: Valid registration. All codes
N700BZ Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
New York
Standard 2016-04-08 ValidFAA registration status code V: Valid registration. All codes
N297HP Piper
PA-32R-301
Fixed-wing, single engine Cherokee Investments LLC
Monroe, Virginia
Standard 2016-04-07 ValidFAA registration status code V: Valid registration. All codes
N222HP Cessna
R182
Fixed-wing, single engine Co-owned owner
Texas
Standard 2016-04-05 ValidFAA registration status code V: Valid registration. All codes
N44JA Piper
PA-32-301
Fixed-wing, single engine Jersey Aero Club INC
Lakewood, New Jersey
Standard 2016-03-17 ValidFAA registration status code V: Valid registration. All codes
N79SR Piper
AEROSTAR 601P
Fixed-wing, multi-engine Co-owned owner
Alabama
Standard 2016-03-10 ValidFAA registration status code V: Valid registration. All codes
N909RD Socata
TB-20 TRINIDAD
Fixed-wing, single engine Pontix Consulting INC
Hercules, California
Standard 2016-03-10 ValidFAA registration status code V: Valid registration. All codes
N444CT Piper
PA32-301FT
Fixed-wing, single engine Individual owner
Connecticut
Standard 2016-03-09 ValidFAA registration status code V: Valid registration. All codes
N798M Robinson Helicopter
R44 II
Helicopter Global Aerials INC
Pembroke Pines, Florida
Standard 2016-03-02 ValidFAA registration status code V: Valid registration. All codes
N2443H Cessna
182S
Fixed-wing, single engine Silver Star Jet LLC
Delafield, Wisconsin
Standard 2016-03-01 ValidFAA registration status code V: Valid registration. All codes
N955DQ Charles Weber/Philip Mull
RV-10
Fixed-wing, single engine Individual owner
Iowa
Experimental 2016-02-19 ValidFAA registration status code V: Valid registration. All codes
N2884M Piper
PA-32-300
Fixed-wing, single engine Wattum Investments LLC
Kodiak, Alaska
Standard 2016-02-17 ValidFAA registration status code V: Valid registration. All codes
N4PY Griffin James A
GLASAIR III
Fixed-wing, single engine Individual owner
Michigan
Experimental 2016-02-09 ValidFAA registration status code V: Valid registration. All codes
N417ES Cessna
182S
Fixed-wing, single engine Individual owner
Tennessee
Standard 2016-01-29 ValidFAA registration status code V: Valid registration. All codes
N549WS Piper
PA-32R-301
Fixed-wing, single engine Boraam Aviation INC
Prospect Heights, Illinois
Standard 2016-01-27 ValidFAA registration status code V: Valid registration. All codes
N2366M Cessna
182S
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2016-01-26 ValidFAA registration status code V: Valid registration. All codes
N2382H Cessna
182S
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2016-01-26 ValidFAA registration status code V: Valid registration. All codes
N3556V Cessna
182T
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2016-01-26 ValidFAA registration status code V: Valid registration. All codes
N577TZ Cessna
182T
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2016-01-26 ValidFAA registration status code V: Valid registration. All codes
N801AL Cessna
182S
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2016-01-26 ValidFAA registration status code V: Valid registration. All codes
N289CF Formano Louis A
HARMON ROCKET II
Fixed-wing, single engine Individual owner
California
Experimental 2016-01-21 ValidFAA registration status code V: Valid registration. All codes
N42942 Piper
PA-32-301
Fixed-wing, single engine Mott Plane LLC
Morning Sun, Iowa
Standard 2016-01-20 ValidFAA registration status code V: Valid registration. All codes
N399LM Piper
PA-32-300
Fixed-wing, single engine Pepper LLC
Winter Garden, Florida
Standard 2016-01-19 ValidFAA registration status code V: Valid registration. All codes
N812MC Cessna
182T
Fixed-wing, single engine Fly Bye Air LLC
Southport, North Carolina
Standard 2016-01-14 ValidFAA registration status code V: Valid registration. All codes
N114MK Maule
MX-7-235
Fixed-wing, single engine Individual owner
Texas
Standard 2016-01-13 ValidFAA registration status code V: Valid registration. All codes
N740AM Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Missouri
Standard 2016-01-13 ValidFAA registration status code V: Valid registration. All codes
N5100X Cessna
182T
Fixed-wing, single engine Individual owner
Texas
Standard 2016-01-12 ValidFAA registration status code V: Valid registration. All codes
N117HR Berry Dean
HARMON ROCKET II
Fixed-wing, single engine Emax LLC
Perry, Georgia
Experimental 2016-01-11 ValidFAA registration status code V: Valid registration. All codes
N2131U Cessna
182T
Fixed-wing, single engine Agh Property Investments INC
Key West, Florida
Standard 2016-01-11 ValidFAA registration status code V: Valid registration. All codes
N886JH Piper
PA-32R-301
Fixed-wing, single engine Jpj Aviation Holdings LLC
Wilmington, Delaware
Standard 2016-01-06 ValidFAA registration status code V: Valid registration. All codes
N437DE Robinson Helicopter
R44 II
Helicopter Tumbleweed Leasing CO INC
Salt Lake City, Utah
Standard 2016-01-05 ValidFAA registration status code V: Valid registration. All codes
N229LP Cessna
182T
Fixed-wing, single engine Duke Air LLC
Romeo, Michigan
Standard 2016-01-04 ValidFAA registration status code V: Valid registration. All codes
N892BV Cessna
182T
Fixed-wing, single engine Gd Aviation INC
Belleair, Florida
Standard 2015-12-29 ValidFAA registration status code V: Valid registration. All codes
N116ZX Cessna
182S
Fixed-wing, single engine Individual owner
Colorado
Standard 2015-12-23 ValidFAA registration status code V: Valid registration. All codes
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.